Motor replacement in 03
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Direct plug and play any 2003 and any 04-08 from a 2500/3500; also 04 Durango. Next level down is any 04-05 1500, they have EGR that would need to be blocked. After that is 06-08 1500, has EGR and MDS; includes 05-08 Durango and Aspen. Last is from any 05-08 LX car, the core engine is basically the same but a BUNCH of stuff would have to be changed; has EGR and MDS as well.